Current distributor (XP series current distributor) (one into two, one in three out of a and out) is in the automatic control system for all kinds of industrial signal transmitting, conversion, isolation, transmission, operation of the instrument, can cooperate with all kinds of industrial sensors, retrieve the parameter signals, isolate analog transmission, meet the needs of the user local monitoring remote data acquisition. Widely used in machinery, electrical, telecommunications, electric power, petroleum, chemical industry, steel, sewage treatment, buildings and other fields of data acquisition, signal transmission conversion, PLC, DCS and other industrial measurement and control system, to improve and supplement the system simulation ∣/O plug-in function, increase the applicability of the system and the reliability of the field environment.